Raw Telepathy

Someone with just telepathy gains some simple benefits regardless of skill. This benefit is unconscious, so is gained even if you aren't aware that you are telepathic as long as the ability doesn't require Fatigue cost. Any raw abilities that require Fatigue are conscious.

Add Power to Empathy skill checks against people within range. Range is 1m per point of power.

Raw Telekinesis

If you have telekinetic ability, add your Power to Throw checks for throwing and catching objects. By spending Fatigue, you can also add your Power to any dodge rolls (you are using it to block and deflect attacks).

Skills

Psionic skills have to be learnt, normally by training. You obviously have to be aware of your ability in order to use a psionic skill.